Search (1393 results, page 7 of 70)

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Abstract

This paper deals with the problem of modeling Web information resources using expert knowledge and personalized user information for improved Web searching capabilities. We propose a "Web information space" model, which is composed of Web-based information resources (HTML/XML [Hypertext Markup Language/Extensible Markup Language] documents an the Web), expert advice repositories (domain-expert-specified metadata for information resources), and personalized information about users (captured as user profiles that indicate users' preferences about experts as well as users' knowledge about topics). Expert advice, the heart of the Web information space model, is specified using topics and relationships among topics (called metalinks), along the lines of the recently proposed topic maps. Topics and metalinks constitute metadata that describe the contents of the underlying HTML/XML Web resources. The metadata specification process is semiautomated, and it exploits XML DTDs (Document Type Definition) to allow domain-expert guided mapping of DTD elements to topics and metalinks. The expert advice is stored in an object-relational database management system (DBMS). To demonstrate the practicality and usability of the proposed Web information space model, we created a prototype expert advice repository of more than one million topics/metalinks for DBLP (Database and Logic Programming) Bibliography data set. We also present a query interface that provides sophisticated querying fa cilities for DBLP Bibliography resources using the expert advice repository.

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Abstract

With the increase of information on the Web, it is difficult to find desired information quickly out of the documents retrieved by a search engine. One way to solve this problem is to classify web documents according to various criteria. Most document classification has been focused on a subject or a topic of a document. A genre or a style is another view of a document different from a subject or a topic. The genre is also a criterion to classify documents. In this paper, we suggest multiple sets of features to classify genres of web documents. The basic set of features, which have been proposed in the previous studies, is acquired from the textual properties of documents, such as the number of sentences, the number of a certain word, etc. However, web documents are different from textual documents in that they contain URL and HTML tags within the pages. We introduce new sets of features specific to web documents, which are extracted from URL and HTML tags. The present work is an attempt to evaluate the performance of the proposed sets of features, and to discuss their characteristics. Finally, we conclude which is an appropriate set of features in automatic genre classification of web documents.

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Abstract

Europeana provides access to more than 54 million cultural heritage objects through its portal Europeana Collections. It is crucial for Europeana to be recognized by search engines as a trusted authoritative repository of cultural heritage objects. Indeed, even though its portal is the main entry point, most Europeana users come to it via search engines. Europeana Collections is fuelled by metadata describing cultural objects, represented in the Europeana Data Model (EDM). This paper presents the research and consequent recommendations for publishing Europeana metadata using the Schema.org vocabulary and best practices. Schema.org html embedded metadata to be consumed by search engines to power rich services (such as Google Knowledge Graph). Schema.org is an open and widely adopted initiative (used by over 12 million domains) backed by Google, Bing, Yahoo!, and Yandex, for sharing metadata across the web It underpins the emergence of new web techniques, such as so called Semantic SEO. Our research addressed the representation of the embedded metadata as part of the Europeana HTML pages and sitemaps so that the re-use of this data can be optimized. The practical objective of our work is to produce a Schema.org representation of Europeana resources described in EDM, being the richest as possible and tailored to Europeana's realities and user needs as well the search engines and their users.

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Abstract

The World Wide Web (W3) has proved to be an important step towards realising truly integrated information ecologies. The radical openness of the Web model of information processing poses a number of fundamental problems that cannot be tackled in a technology-oriented framework alone. What is at stake, it will be argued, is a large scale restructuring of information processing environments affecting both information providers and end-users. The basic strategy of the Web, the global HTML-based hypertext, will be discussed with oarticular reference to methodological implications in text-oriented fields. The claim will be the importance of the Web as a generator for new leading metaphors of globally networked information processing

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Abstract

The original WAIS implementation by Thinking Machines and others treats documents as uniform bags of terms. Since most documents exhibit some internal structure, it is desirable to provide the user means to exploit this structure in his queries. Presents extensions to the freeWAIS indexer and server, which allows access to document structures using the original WAIS protocol. Major extensions include: arbitrary document formats, search in individual structure elements, stemming and phonetic search, support of 8-bit character sets, numeric concepts and operators. combination of Boolean and linear retrieval. Presents a WWW-WAIS gateway specially tailored for usage with freeWAIS-sf which transforms filled out HTML forms to the new query syntax

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Abstract

Presents an environment for publishing information on the WWW. Previous work has pointed out that the explosive growth of the WWW is in part due to the ease with which information can be made available to Web users. Yet this property can have negative impacts on the ability to find appropriate information as well as on the integrity of the in published. Presents a prototype environment that facilitates the publishing of documents on the Web by automatically generating meta information about the document, communication its to a local scalable architecture, eg WHOIS plus, verifying the document's HTML compliance, maintaining referenial integrity within the local database, and placing the document in a Web accessible area. Additionally, maintenance and versioning environment, then describes the implementation, followed by a discussion of salient issues and future research areas

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Source

http://www.icbl.hw.ac.uk/ctl/msc/ceejw1/paper9.html

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Abstract

Describes the design and implementation of TACHIR, a tool for the automatic construction of hypertexts for information retrieval. Through the use of an authoring methodology employing a set of well known information retrieval techniques, TACHIR automatically builds up a hypertext from a document collection. The structure of the hypertext reflects a 3 level conceptual model which enables navigation among documents, index terms, and concepts using automatically determined links. The hypertext is implemented using the HTML language. It can be distributed on different sites and different machines over the Internet, and it can be navigated using WWW interfaces

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Abstract

Reviews askSam 3.0, a free form text database management system for large volumes of textual data includding e-mail, literature searches, CD-ROM ancyclopaedias, USENET newsgroup files, downloads from online service providers and HTML documents. AskSam works with files, documents, data entry forms, graphics and embedded objects. It has its own word processor, will import files from other databases, implements hypertext and includes a phone dialling option. AskSam is suitable for librarians, information or marketing professionals and business planners. Discusses installation and setup; documentation; data structures and file creation characterisitcs; data entry; modification; editing and copying; the search engine; reports; importing/exporting; and special features

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Abstract

Reports results of study, undertaken at the Project Whistlestop Web site, Missouri University at Columbia to examine the indexing and retrieval rates of 5 WWW search engines: InfoSeek; Excite; Yahoo; Lycos and AltaVista. Character strings were planted in the Project Whistlestop Web site and daily searches were performed for 6 weeks. The HTML tag was indexed in 4 of the 5 search engines and problems encountered include insufficient and inconsistent indexing

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Abstract

Despite the proliferation of new search engines and improvements to existing ones, their use with the WWW continues to produce innumerable false hits. The reason for this is that HTML is mainly a presentation tool, and does a fairly poor job of describing the contents of a document while search engines are a long way from artificial intelligence. The use of SGML would ease the problem considerably, but is much more complex and time consuming to learn to be of general use. The alternative 'metadata' approach is proving slow to get off the ground. Researchers are investigating these and various other lines of enquiry

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Abstract

Information professions identified the need for a set of standard metadata almost as soon as the WWW became a reality. Several initiatives have already identified the types of bibliographic information that would be necessary to describe and locate an electronic publication. The descriptors identified in the OCLC/NCSA Dublin Core are combined with those assembled by the Coalition of Networked Information and the Internet Engineering Task force to produce a list of electronic citation elements. Advocates embedding these citation elements within electrinic documents through the use of HTML<META>tags and other markup techniques. There is also a call to cataloguing librarians to contribute their expertise in information resources management to document being prepared for the WWW in order to influence the quality of electronic publication from the insides

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Footnote

Auch als: http://www.faw.uni-ulm.de/deutsch/publikationen/radermacher/cogni_2.html

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Abstract

The OtaOnline project at the Helsinki University of Technology, Finland, has been deploying the distribution of Finnish newspapers such as Iltalehti, Aamulehti and Kauppalehi on the Internet since 1994. The editors produce the electronic counterpart of these papers by a conversion process from QuarkXpress documents to HTML. The project is about to introduce an approach which provides many new features. Describes an object-oriented approach which implements the logical model of a hypermedia newspaper. It encapsulates the structures of the hypermedia documents as well as their capability for transforming into different presentation formats. It also provides a semantical rating mechanism to be used with intelligent agents. Presents a distribution scheme which enables efficient use of this model

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Abstract

Emphasizes the increased importance of the role of the librarian as a 'human' interface in the organization and retrieval of resources in the networked environment. Comments on the recent increase in metadata and compares the long established MARC format and adaptations of MARC with several other alternative metadata systems. Outlines the use of embedded META tag information in HTML documents and describes how existing search engines find and index resources on the WWW, with their pros and cons. Discusses the implications for effective research of the inherent limitations of these automated indexing schemes

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Abstract

The Goal of the Gateway to Educational Materials project is to develop an operational framework to provide teachers on the USA with one-stop/any-stop access to lesson plans, curriculum units and other Internet based educational resources. It is being run by the ERIC Clearinghouse on Information and Technology at Syracuse University. Its tasks are to: develop syntax and practices for its application using HTML specifications and Internet browsers; define a metadata profile and controlled vocabularies; encourage the design of prototype interfaces to GEM metadata; design and implement harvesting tools for retrieving metadata; and develop an organizational structure for the maintenance of the GEM profile and its controlled vocabularies

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Abstract

Introduces a new 'How do they do that?' feature dedicated to explaining Web developer tools. Begins with CGIs, using the example of Web site visitor counters to explain key concepts. Provides background on how the Web works, with a high level overview of protocol stacks, TCP/IP, HTTP and HTML. Contrasts the differences between programs and scripts, scripts being executable files that are not compiled. The addition of CGI scripts to a Web server can pose security risks if not handled properly. The Web offers many downloadable CGI scripts for basic functions, including counters, timers, guest books, image maps, and server-push animations

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Abstract

The vast sources of information, in formatted files, online publications requiring registratiion and login, many statistical files as well as subject databases where results appear as dynamically created HTML pages, are not accessible to Web spiders and thus constitute a hidden Internet. In addition there are non-Web resources such as ftp archives where such materials as research papers can be obtained free. Explains a number of approaches to the hidden Internet including using the list 'Direct links to the search interfaces of resources not easily searchable ..." compiled at the Gelman Library, George Washington University and the Internet Sleuth. Also reviews publications to aid those using Photoshop for designing graphics

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Abstract

A materialized hypertext view is a hypertext containing data coming from a database and whose pages are stored in files. A Web site presenting data coming from a database is an example of such a view, where the hypertext pages are HTML files. Even if the most popular approach to the generation of such sites is the virtual one, there is also a rationale for a materialized apporach. This paper deals with the maintenance issues required by these derived hypertext to enforce consistency between page content and database state

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Abstract

A guide to collection development and leisure related Web sites. Highlights more than 2 dozen sites, approximately half of which are devoted to collection development. The same principles used to develop print collections apply to electronic resource collection development. Many review resources are available as a result of efforts by Internet librarians. Good starting points for this category include the Library Web Manager's Reference Center: Current Awareness, and the Librarians' Index to the Internet. Picks of the month for leisure time include KidsHealth.org, Chemical Scorecard, and DigiCams Web Cam Viewer. Also includes a sidebar listing eight books covering topics such as SQL, HTML, DHTML, Web navigation, Windows 98, guides to computers and Palm Pilots, and spamming